87408823 has 2 divisors, whose sum is σ = 87408824. Its totient is φ = 87408822.

The previous prime is 87408821. The next prime is 87408859. The reversal of 87408823 is 32880478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87408823 - 2¹ = 87408821 is a prime.

Together with 87408821, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87408821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43704411 + 43704412.

It is an arithmetic number, because the mean of its divisors is an integer number (43704412).

Almost surely, 2^87408823 is an apocalyptic number.

87408823 is a deficient number, since it is larger than the sum of its proper divisors (1).

87408823 is an equidigital number, since it uses as much as digits as its factorization.

87408823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 87408823 is about 9349.2685810174. The cubic root of 87408823 is about 443.7977445686.

The spelling of 87408823 in words is "eighty-seven million, four hundred eight thousand, eight hundred twenty-three".